Three people have been arrested in connection with a California wildfire that has already destroyed 1,700 acres north-east of Los Angeles. Up to 2,000 people were ordered out of their homes after the fire, which ravaged about 1,700 acres in the suburbs, according to police in Azusa, just north of Los Angeles, according to the BBC. Emergency crews said they had contained 30% of the blaze which started at 06:00 local time (14:00 GMT) on Thursday. Authorities say it began when the three suspects threw paper into a campfire. They face charges of recklessly starting a fire. Los Angeles County Fire Deputy Chief John Tripp said at a news conference that five homes had been burned and 17 structures, including some residences, damaged by the fire, which is thought to have started near Colby Trail.